Of springfield



of applying thesaine; and `I cio-hereby sanie,7rei`erence being had toth'earmexed vmost 'perfect action and the greatest convenience in use,'Va section -iuade iu the centre, longitudinally or transversely, wouldseparate into two equal and similar parte. I 'do not limit'.` my claim,however, to any `particularform of -vessel, but includeits applicationalike to all.

end; but whether so or not, the form and fof the scales is shown infigs. 2 and-3. They are placed according to the rule hereinbeforcexplained; the stems by tightly fitting Vplunger ilow into 'thecham'berC. enough to close, or being pressed below the elbow will prevent theLetters Patent N 62,366, dated Fem-nary i6, 1867,v

ArrAsATUs ,ron AscERTiiNI-Ne courier, ci.

itin Stimuli refitrri tuili tlgrsr flirting @anni :un nzilaiiujput cithe smm.

To ALL WHOM i'r MAY coNcERN: f

Be tknown that WILLIAM-A Osedlr Bint-ii, oi'- Springiield, in the countyof Clark, and State of Ohio, have invented new and useful Improvementsin Apparatus for drawings, making part of this specification, in1which-L- Figure 1 is a perspective -vicw showing the apparatus appliedto a symmetrical hull in which the sections formed by cutting litcentrally fore and aft or abeam would be similar. i i I Figure2 is asideelevation of my improved hydrostatic scale, represented with portions ofthecaaing aa broken away to showthe interior parts. i v

Figure 8 is a side elevation showing parts of the same. Figure 4 is aside elevation showing a variation inthe construction of the salne andFigure A-is a diagram referred to in the specification and thereinexplained'. l j The-same letters are employed in all the gnre's in theindication of partsI which are identical.. v My improvement consists iiithe use of duplex scales, placed en opposite sides and. ends ofthefvessel, for the aduieasurenlent of the displacement and t-hedetermination of the total result by the average o f all. Also indetermining` the best position for placing the scales.' Alsoinsundryimprovemen'ts, to loehereinafter set forth, upon the constructionof such scales. Itlias been heretoforev attempted to measure thedisplacement ofgvessels by a single scale placed at what is called thedead-point. Such was` the .purpose of Amory- Amsdens patent, (of which Iam sole owner-by mcsne assignuient,') which in practice 'has proved afailure by reason ofv its inability t@ detect therchanggof form alwaysattendingjche unegilalload-ing of vessels, which is technically calledhogging." '.lo guard against this imperfection in the indication ot'results, -illuso a duplex system of scales placed on opposite sides andends of the vessel, by the average measurement of which vthe correctresult may at all-times be obtained.

Two scales thus placed will answer t'or ordinary vessels Vin very largeones it may be necessary'to ,increase the number by some multiple oftwo. I have ascertained byczrperiment that the best point' for locatingthe scales is not at the' dcadfpoint, as recommended by Amsdem-butrtoplace one-on each side of the kclson at a point midway between thedead-pointand therbowafnd stern respectively.v v".lo insure the the hullshould be formed alike at both ends, so that To enable othersskilled inthe art-to construct and apply lmy apparatus,

to describe'li't. l v A is the hull of a vessel,- which should be, asalready stated, of correspondingly symmetrical form at each size must bedetermined by accurate external measurements. The form I will proceedmore particularly rising through the deck A',

and the vertical extremity of the tube passing through the hull andopening into vthe water under the i'essel.

A horizontal elbow enters the tube B,'near the middle thereof. The tubeis 'closed valve, movedA by the rod B. The valve may be pressed downuntil oppositethe mouth of the elbow, which it is long entrance of thewater from the outside, and tub'eIl into the bilge wat-erin the bottomof permit a free communication betweeuth'ewater at the same time allowthe water in the cylinder to escape ov'er the tlic vessel. The diameterof the tube should lbe large enough to outsidc'audthe cylindcnnndat thesame time not large enough to permit sudden and violent action in theoat D. '.lhc loat 1'.) is a 'u'atcr-tip'lhtI hollow bulb, made ofnon-corrosive met-al, supporting the stem E. F is an adjustabloccllarsliding vertically upon the neck of the cyliudeig'and held in positionby a pin, F', passing through a vZ-fcr1ned slot in saitlcollar, by meansof which collar the Acarried belowdeelt. To this sliding collar isattached screw, an'd'lalso thc friction-pnlleysl-I, with grooved faces,between which the stem E rises and falls with the action mechanismthereto attached may be raised above or the index G, adjustably attachedto' the collar F, by a setof thcioatf,v The stem E is graduated 4intofractions of feet upwards, and downwards from a zero mariniv which theindex should, be set Vbefore theressel is loaded. The arm I isadjustablyattached to the stem E by a set.-

Measuring the- Tonnage of Yessels'and in the mode declaro 'thatthe'following is a full, clear, and exact description ofthe This valvebeing raised above the elbow the water will fscrem'and is intended, whenthe'oat is raised by water entering the `boat or vessel, by means ofaleak in the hull, or villegal freight, to startvi-ppropriate mechanismfor the purpose ofgiving `an alarm. In fig. 4 I have shown the properconstruction of' a single scale to be placed at the dead-point in thevessel. On the upper end of the stem is an indicator, H, with extendingarms, and halanc'd upon a sharp edge so as always to maintain itshorizontal position, the degree ofdeilection fore and aft or abezunbeing'sh'owvn upon a graduated are to which the indicator arms point.The indicator turns with the revolving head The .mode of operatingwiththis apparatus is .as follows,4 viz The adjustable colla-1` F being-raised above the deck, the index G should be set to point to thezeromark. Asthe cargo is loaded the vessel willsink in the water andthelloat and graduated stem will rise. The amount of' this change as,ascertained by 'the average o f the scale, will determine the line-wherethe plane of displacement will cut thehull; the distance from the zeromark to the point of the index'w'ill enable the operator to determinethe plane of original displacement, and these two planes mark the endsofithe frustum ot' the hull, the cubical contents of which infcet,vmultiplied by the weight of a cubic foot ofzwater, (which, asv notbeing a flared quantity, should he ascertained, though 62,5% may beaccepted as the ordinary rule,) will give the exact weight of the cargotaken onboard.

What I cla-im as my invention, and desire to secure by Letters Patent,is`

1. The use of a duplex system of hydrostatic scales' for theadnieasurementof thc displacementfoi vessels, when said scales arerespectively placed in relation to the vessel and one anothersubstantially as set lforth.

2. The combination of the cylinder C, pipe B, and plunger valve actuatedby the rod B', when arranged to operate substantially as and for thepurpose set forth. y l

3. In combination with th'e cylinder C, float-D, and graduated 4stem-E,I claim the revolving head E', and balanced indicator H, substantiallyas and for the purpose set forth.

` WILLIAM osoAR BEIM. Witnesses:

REUBEN MILLER, S. D. CARPENTER;

